OPERATION
Appliance description
18 | DHC www.stiebel-eltron.com
3. Appliance description
The hydraulically controlled small instantaneous water heater is
switched on automatically by the hydraulic control unit.
The appliance heats the water directly at the draw-off point as
and when required. The short pipe runs ensure that energy and
water losses are minimal.
The DHW output depends on the cold water temperature, the heat-
ing output and the flow rate.
The tubular heater system is suitable for soft water areas.
The appliance is equipped with overheating protection.
4. Settings
The heating system of the appliance starts automatically and heats
the water as soon as you open the DHW valve at the tap.
For appliance start-up volume, see chapter “Specification”.
12
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1 Power indicator
2 Overheating indicator
Note
In the event of the appliance overheating, the overheating
indicator illuminates.
The water temperature can be adjusted at the tap:
Increasing the temperature
Reduce the flow rate at the tap.
Reducing the temperature
Open the tap further or add more cold water.
Following an interruption to the water supply
See chapter “Commissioning/ Recommissioning”.
5. Cleaning, care and maintenance
Never use abrasive or corrosive cleaning agents. A damp
cloth is sufficient for cleaning the appliance.
Check the taps regularly. Limescale deposits at the tap out-
lets can be removed using commercially available descaling
agents.
Have the electrical safety of the appliance regularly checked
by an electrician.
6. Troubleshooting
Problem Cause Remedy
The appliance will not
start despite the DHW
valve being fully open.
There is no mains volt-
age at the appliance.
Check the fuse/MCB in
your fuse box/distribu-
tion panel.
The tap or shower head
is scaled up or dirty.
Clean and/or descale the
tap/shower head.
The water supply has
been interrupted.
Vent the appliance and
the cold water inlet line
(see chapter "Settings").
No hot water flowing and
overheating indicator
illuminated.
The appliance has over-
heated; heating output
has been interrupted.
The extracted water vol-
ume is too low.
Open the tap further.
After cooling down, the
appliance switches on
again automatically.
If you cannot remedy the fault, notify your qualified contractor.
To facilitate and speed up your request, provide the number from
the type plate (000000-0000-000000).
DHC. . .
no.: 000000-0000-000000
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